Circuit configuration of a Window Comparator usually consists of a pair of inverting and non-inverting voltage comparators in which the output indicates whether an input signal is within a voltage range defined by two different […]
Every once in a while, I have found myself needing a quick circuit to blink a light emitting diode. It is quite easy to build simple microcontroller circuits which performs this task thru a few […]
The decade resistance box is an indispensable test gear for any electronics lab as it can be used to substitute different values of resistors during prototyping and/or experimenting with electronic circuits. Using it is easy […]
An optocoupler, simply put, is a little device consisting of an independently-powered light transmitter and light receiver unit packed inside a light-proof shell that can be optically coupled together. Actually optocouplers are very easy to […]
The real inspiration for this post actually came from lots of lame designs seen on the web. The last drop was a reasonably great written article presenting a number of blueprints to build timer circuits […]
Do you know? You can govern the speed of brushed DC motors without any additional sensors, but using a basic characteristic – the speed-dependent back EMF (BEMF) voltage! The BEMF motion control technique has been […]
A common application for electronic timers is to turn electrical devices on/off until a predetermined time, a task that can easily be implemented with ubiquitous microcontrollers like the Arduino! Usually that time period starts from […]
You do not need to read this post if you are willing to thoughtlessly throw away your hard-earned money to buy a car power probe that only has very cheap electronic circuitry inside. On the […]
As promised, here is another fun BBC micro:bit project for your lovely kids. This time, get ready to make a dark-activated LED badge for them and enjoy! By now hopefully you have already gone through […]
This post is about the far-famed and widely-used 741 classic operational amplifiers! While not attempting to share numerous potential applications, it includes one basic circuit idea that can be tweaked well to applications other than […]
